Results 71 to 80 of about 339,440 (296)

Enhanced Oxidation and Thermal Shock Resistance of N‐type Mg2Si0.89(Sn0.1,Sb0.01) Thermoelectric Material via Cr0.9Si0.1 Coating

Advanced Engineering Materials, EarlyView.
Cr0.9Si0.1 protective coatings are developed to enhance the thermal‐shock and oxidation resistance of Mg2Si0.89(Sn0.1,Sb0.01) thermoelectric (TE) materials. The coating forms a dense and adherent barrier that suppresses oxygen diffusion and mitigates mechanical degradation during cyclic oxidation, demonstrating its potential to improve the long‐term ...
Mikdat Gurtaran, Zhenxue Zhang, Xiaoying Li, Hanshan Dong   +3 more
wiley   +1 more source

Dynamic NanoSIMS ion imaging of unicellular freshwater algae exposed to copper [PDF]

, 2018
This work demonstrates the capabilities of nanoscale secondary-ion mass spectrometry, using the Cameca NanoSIMS50 ion microprobe, to detect and image the copper-ion distribution in microalgal cells exposed to nanomolar and micromolar copper ...
Eybe, Tanja, Guignard, Cédric, Hoffmann, Lucien, Migeon, Henri-Noël, Slaveykova, Vera   +4 more
core  

Optical and electronic properties of sub-surface conducting layers in diamond created by MeV B-implantation at elevated temperatures

, 2016
Boron implantation with in-situ dynamic annealing is used to produce highly conductive sub-surface layers in type IIa (100) diamond plates for the search of a superconducting phase transition.
Bowers, H., Ganesan, K., Johnson, B. C., Liu, R., McCallum, J. C., Prawer, S., van Beveren, L. H. Willems   +6 more
core   +1 more source

New attempts to understand nanodiamond stardust [PDF]

, 2011
We report on a concerted effort aimed at understanding the origin and history of the pre-solar nanodiamonds in meteorites including the astrophysical sources of the observed isotopic abundance signatures.
A. Besmehn, A. Wallner, Arndt, Arndt, Besmehn, Braatz, Dillmann, Heck, Hohenberg, Hoppe, Huss, Huss, K. Farouqi, K. Melber, K.-L. Kratz, Kutschera, Lewis, Lodders, Marhas, Nichols, O. Hallmann, Ott, Ott, Ott, P. Hoppe, Pearson, Priller, Schönbächler, Steier, U. Ott, Wallner, Wallner, Zinner   +32 more
core   +3 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Diffusion based degradation mechanisms in giant magnetoresistive spin valves

, 2008
Spin valve systems based on the giant magnetoresistive (GMR) effect as used for example in hard disks and automotive applications consist of several functional metallic thin film layers.
Jürgen Zimmer, Klemens Prügl, Lambert Alff, Matthias Hawraneck, Néel L., Néel L., Stefan Flege, Stephan Schmitt, Thomas Bever, Wolfgang Raberg   +9 more
core   +1 more source

Characterization of TiAl alloys by secondary Ion mass spectrometry [PDF]

, 2004
Titanium aluminides are arising as a valuable alternative to superalloys in applications where the ratio resistance/density is important. Together with excellent mechanical and corrosion properties at high temperatures, such characteristics are very ...
Barbosa, J., Monteiro, A. Caetano, Moutinho, A. M. C., Ribeiro, Carlos Silva, Teodoro, O. M. N. D.   +4 more
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Deuterium concentration depth profiling in sputter-deposited tungsten coated F82H using secondary ion mass spectrometry

Nuclear Materials and Energy, 2019
Deuterium plasma-driven permeation (PDP) through reduced activation ferritic steel alloy F82H with and without sputter-deposited tungsten (SP-W) coatings has been conducted using a laboratory-scale steady-state plasma facility.
Y. Xu, Y. Hirooka, L.M. Luo, Y.C. Wu
doaj   +1 more source